1, the meaning of three-layer cake: old, middle-aged and young, each generation is stronger than the next; For example, oil, just falling in love for three years, can also be represented by three layers of cake; The work "treading on thin ice" can also be congratulated with three layers of cakes.

2, also refers to three years of junior high school and three years of high school. Learn to improve step by step In short, you can think of anything. Health, family, career. A happy life. Happy family and successful career. Today, tomorrow. The first love, passionate love, marriage, etc. of teenagers, young people and old people in the future; It has only three meanings.